diff --git a/.github/workflows/Specs.yml b/.github/workflows/Specs.yml
index f47cf2b..a6aa41c 100644
--- a/.github/workflows/Specs.yml
+++ b/.github/workflows/Specs.yml
@@ -6,7 +6,7 @@ jobs:
       fail-fast: false
       matrix:
         task: [SPECS]
-        ruby: [2.6, 2.7]
+        ruby: ['2.7', '3.0']
         os: [ubuntu-20.04]
 
     name: ${{ matrix.task }} / ${{ matrix.os }} / Ruby ${{ matrix.ruby }}
diff --git a/Gemfile b/Gemfile
index 1812ba0..a70ada1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,10 +6,12 @@ git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 gemspec
 
-gem 'clintegracon', '~> 0.9.0'
+gem 'bacon', git: 'https://github.com/leahneukirchen/bacon'
+gem 'clintegracon', git: 'https://github.com/mrackwitz/CLIntegracon'
 gem 'cocoapods', github: 'CocoaPods/CocoaPods'
 gem 'cocoapods-core', github: 'CocoaPods/Core'
 gem 'inch_by_inch', '~> 1.0.1'
 gem 'prettybacon'
+gem 'rexml'
 gem 'rspec', '~> 3.10'
 gem 'rubocop', '~> 0.55.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 868d088..713750d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,10 +36,24 @@ GIT
       public_suffix
       typhoeus (~> 1.0)
 
+GIT
+  remote: https://github.com/leahneukirchen/bacon
+  revision: 34068e01b6cc8b83f744b28e8ae7b4fd07affccb
+  specs:
+    bacon (1.2.0)
+
+GIT
+  remote: https://github.com/mrackwitz/CLIntegracon
+  revision: ca88b7b8920b6b6542f9b4ad2b1748855783dbae
+  specs:
+    clintegracon (0.9.0)
+      colored2 (~> 3.1)
+      diffy
+
 PATH
   remote: .
   specs:
-    cocoapods-generate (2.2.3)
+    cocoapods-generate (2.2.4)
       cocoapods-disable-podfile-validations (>= 0.1.1, < 0.3.0)
 
 GEM
@@ -58,11 +72,7 @@ GEM
       json (>= 1.5.1)
     ast (2.4.0)
     atomos (0.1.3)
-    bacon (1.2.0)
     claide (1.0.3)
-    clintegracon (0.9.0)
-      colored2 (~> 3.1)
-      diffy
     cocoapods-deintegrate (1.0.4)
     cocoapods-disable-podfile-validations (0.2.0)
     cocoapods-downloader (1.4.0)
@@ -73,7 +83,7 @@ GEM
       nap (>= 0.8, < 2.0)
       netrc (~> 0.11)
     cocoapods-try (1.2.0)
-    coderay (1.1.2)
+    coderay (1.1.3)
     colored2 (3.1.2)
     concurrent-ruby (1.1.6)
     diff-lcs (1.4.4)
@@ -97,8 +107,8 @@ GEM
       inch (~> 0.8.0)
       rake (~> 10.0)
     json (2.3.1)
-    method_source (0.9.0)
-    minitest (5.14.1)
+    method_source (1.0.0)
+    minitest (5.17.0)
     molinillo (0.6.6)
     nanaimo (0.3.0)
     nap (1.1.0)
@@ -109,12 +119,13 @@ GEM
     powerpack (0.1.1)
     prettybacon (0.0.2)
       bacon (~> 1.2)
-    pry (0.11.3)
-      coderay (~> 1.1.0)
-      method_source (~> 0.9.0)
+    pry (0.14.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     public_suffix (4.0.6)
     rainbow (3.0.0)
     rake (10.5.0)
+    rexml (3.2.5)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)
@@ -138,37 +149,43 @@ GEM
     ruby-macho (1.4.0)
     ruby-progressbar (1.9.0)
     sparkr (0.4.1)
-    term-ansicolor (1.6.0)
+    sync (0.5.0)
+    term-ansicolor (1.7.1)
       tins (~> 1.0)
     thread_safe (0.3.6)
-    tins (1.16.3)
+    tins (1.32.1)
+      sync
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.3.0)
+    webrick (1.7.0)
     xcodeproj (1.17.1)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
       nanaimo (~> 0.3.0)
-    yard (0.9.20)
+    yard (0.9.28)
+      webrick (~> 1.7.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  bacon!
   bundler (>= 1.16, < 3)
-  clintegracon (~> 0.9.0)
+  clintegracon!
   cocoapods!
   cocoapods-core!
   cocoapods-generate!
   inch_by_inch (~> 1.0.1)
   prettybacon
   rake (~> 10.0)
+  rexml
   rspec (~> 3.10)
   rubocop (~> 0.55.0)
 
 BUNDLED WITH
-   1.17.3
+   2.3.26
diff --git a/VERSION b/VERSION
index 5859406..530cdd9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.3
+2.2.4
diff --git a/lib/cocoapods/generate/installer.rb b/lib/cocoapods/generate/installer.rb
index 8fb9d0d..af4ced6 100644
--- a/lib/cocoapods/generate/installer.rb
+++ b/lib/cocoapods/generate/installer.rb
@@ -187,7 +187,7 @@ def perform_post_install_steps(app_project, installer)
           native_app_target.resources_build_phase.clear
 
           if (app_host_source_dir = configuration.app_host_source_dir)
-            relative_app_host_source_dir = app_host_source_dir.relative_path_from(installer.sandbox.root)
+            relative_app_host_source_dir = app_host_source_dir.relative_path_from(install_directory)
             groups = {}
 
             app_host_source_dir.find do |file|
diff --git a/spec/cocoapods/generate/installer_spec.rb b/spec/cocoapods/generate/installer_spec.rb
index 5056db1..1a85bf5 100644
--- a/spec/cocoapods/generate/installer_spec.rb
+++ b/spec/cocoapods/generate/installer_spec.rb
@@ -25,7 +25,8 @@ def native_target_double(name, project)
 
   let(:podspecs) { [Pod::Spec.new(nil, 'A'), Pod::Spec.new(nil, 'B')] }
   let(:lockfile_specs) { [] }
-  let(:gen_directory) { Pathname('./spec/cocoapods/generate/gen') }
+  let(:repo_root) { Pathname('./spec/cocoapods').expand_path }
+  let(:gen_directory) { repo_root + Pathname('generate/gen') }
   let(:lockfile) { Pod::Lockfile.generate(podfile, lockfile_specs, {}) }
   let(:config_options) do
     { podfile: podfile, lockfile: lockfile, use_podfile: !!podfile,
@@ -47,8 +48,10 @@ def native_target_double(name, project)
   end
 
   describe_method 'perform_post_install_steps' do
+    let(:project_root) { gen_directory + 'Workspace' }
+    let(:project_path) { project_root + 'AppProject.xcodeproj' }
     let(:app_project) do
-      app_project = Xcodeproj::Project.new(Pathname.new(gen_directory + 'AppProject.xcodeproj'))
+      app_project = Xcodeproj::Project.new(project_path)
       app_project.new_target(:application, 'App-iOS', :ios)
       app_project
     end
@@ -67,6 +70,7 @@ def native_target_double(name, project)
     let(:cocoapods_installer) do
       installer = double('cocoapods_installer')
       allow(installer).to receive(:pod_targets).and_return([pod_target_a, pod_target_b])
+      allow(installer).to receive(:sandbox).and_return(double('sandbox', root: project_root + 'Pods'))
       allow(installer).to receive(:target_installation_results).and_return(
         Pod::Installer::Xcode::PodsProjectGenerator::InstallationResults.new(pod_target_installation_results)
       )
@@ -103,6 +107,36 @@ def native_target_double(name, project)
         end
       end
     end
+
+    context 'with app_host_source_dir' do
+      let(:app_host_source_dir) { repo_root + Pathname('sample_app_host') }
+      let(:app_target_name) { 'App-iOS' }
+      let(:config_options) do
+        { podfile: podfile, lockfile: lockfile, use_podfile: !!podfile,
+          use_lockfile_versions: !!lockfile, gen_directory: gen_directory,
+          app_host_source_dir: app_host_source_dir}
+      end
+
+      it 'places the sources relative to the project root' do
+        allow(File).to receive(:exist?).with(Xcodeproj::XCScheme.user_data_dir(pods_project.path) + 'A.xcscheme').and_return(true)
+        allow(File).to receive(:exist?).with(Xcodeproj::XCScheme.user_data_dir(pods_project.path) + 'B.xcscheme').and_return(true)
+        allow(Xcodeproj::XCScheme).to receive(:share_scheme).with(pods_project.path, 'A')
+        allow(Xcodeproj::XCScheme).to receive(:share_scheme).with(pods_project.path, 'B')
+
+        allow(File).to receive(:exist?).with(app_host_source_dir.to_s).and_return(true)
+
+        subject
+
+        app_target = app_project.groups.find { |g| g.name == app_target_name }
+        expect(app_project.path).to eq project_path
+        expect(app_target.real_path).to eq app_host_source_dir
+        expect(app_target.children.map { |c| c.real_path }).to contain_exactly(
+          app_host_source_dir + 'AppDelegate.swift',
+          project_root + app_target_name + 'Info.plist',
+          project_root + app_target_name + 'LaunchScreen.storyboard'
+        )
+      end
+    end
   end
 
   describe_method 'create_app_project' do
diff --git a/spec/cocoapods/sample_app_host/AppDelegate.swift b/spec/cocoapods/sample_app_host/AppDelegate.swift
new file mode 100644
index 0000000..b355557
--- /dev/null
+++ b/spec/cocoapods/sample_app_host/AppDelegate.swift
@@ -0,0 +1,7 @@
+import MarketLogging
+
+@UIApplicationMain
+class AppDelegate: UIApplicationDelegate {
+    init() {
+    }
+}
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1b1857a..de13b71 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -73,6 +73,7 @@ def print(message)
 
   config.expect_with :rspec do |c|
     c.syntax = :expect
+    c.max_formatted_output_length = 1000
   end
 
   config.extend(Module.new do